What should I do if the modified suffix name is invalid under Windows7?

Under Windows 7, there are so many files, and we can not only distinguish them by naming, but also by suffixing them, we can modify these suffixes. Get the files we want, but sometimes our modifications to these suffixes are always invalid. What's going on? Now, let's take a look at Xiaobian!

Reason analysis:

The user incorrectly used the method of adding "add" extension, but in fact there is no change, because the user does not open the common extension display as shown below, the user Change the text document to Bat or a text document.

is the correct way:

1, the option to open the folder, as shown below;

2, the open & ldquo; & rdquo folder options In the window, switch to the "View" panel, find the "Unlock the extension of the known file type" in the "Advanced Settings" box, remove the previous tick, <; OK & rdquo;;

3, after the confirmation, the hidden suffix name is displayed, then you can change the suffix to succeed!

In fact, there will be an invalid extension modify this issue just because you have not enabled common extension, the question of amending extension has no effect as long as the method according to Xiao Bian provided above can be solved Windows7 system.